CN106811675A - A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof - Google Patents
A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof Download PDFInfo
- Publication number
- CN106811675A CN106811675A CN201611226312.XA CN201611226312A CN106811675A CN 106811675 A CN106811675 A CN 106811675A CN 201611226312 A CN201611226312 A CN 201611226312A CN 106811675 A CN106811675 A CN 106811675A
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant ball
- high hardness
- high toughness
- middle manganese
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Food Science & Technology (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a kind of wear-resistant ball of middle manganese high hardness high toughness, the percetage by weight of its each component is as follows：C：3.3 3.7%, Mn：5.5 6.5%, S ＜ 0.04%, P ＜ 0.1%, Si：3.6 4.6%, Cr：14.83 16.83%, Mo：0.012 0.018%, V：0.05 0.09%, W：0.01 0.02%, Ti：0.02 0.06%, Bi：0.01 0.03%, rare earth：0.02 0.045%, Mg：0.04 0.055%, remaining is Fe and inevitable impurity.The present invention also proposes a kind of preparation method of the wear-resistant ball of above-mentioned middle manganese high hardness high toughness.The middle manganese wear-resistant ball that the present invention is prepared carries out reasonable selection by component, improves the anti-wear performance and decay resistance of wear-resistant ball, extends service life.
Description
Technical field
The present invention relates to wear-resistant ball field, more particularly to a kind of middle manganese high hardness high toughness wear-resistant ball and its preparation side
Method.
Background technology
Ball mill is one of widely used super-fine grinder machinery in industrial production.Wear-resistant ball is ball mill equipment grinding material
Medium, produces mill stripping to act on by the collision friction between wear-resistant ball, between wear-resistant ball and material, is zero important, basis
Part, it is widely used in the production process in mine, cement plant and power plant.In the prior art, wear-resistant ball cannot also be complete
Meet performance requirement, anti-wear performance, hardness, toughness and the service life for how improving raising wear-resistant ball are those skilled in the art
The technical problem of urgent need to resolve.
The content of the invention
To solve technical problem present in background technology, the present invention proposes a kind of wear-resistant ball of middle manganese high hardness high toughness
And preparation method thereof.Reasonable selection is carried out by the component of centering manganese wear-resistant steel ball, assigns wear-resistant ball of the present invention excellent hardness
And toughness, service life effectively improves.
A kind of wear-resistant ball of middle manganese high hardness high toughness proposed by the present invention, the percetage by weight of its each component is as follows：C：
3.3-3.7%, Mn：5.5-6.5%, S ＜ 0.04%, P ＜ 0.1%, Si：3.6-4.6%, Cr：14.83-16.83%, Mo：
0.012-0.018%, V：0.05-0.09%, W：0.01-0.02%, Ti：0.02-0.06%, Bi：0.01-0.03%, rare earth：
0.02-0.045%, Mg：0.04-0.055%, remaining is Fe and inevitable impurity.
Preferably, the ratio between Si contents and Mn contents Si/Mn meet 0.55 ＜ Si/Mn ＜ 0.84 with weight ratio meter.
Preferably, the ratio between content of total content (Mn+Si+Cr) of Mn, Si and Cr and C (Mn+Si+Cr)/C is with weight ratio
Meter, meets 6.47 ＜ (Mn+Si+Cr)/C ＜ 8.46.
Preferably, the ratio between total content (Mn+Si) of Mn and Si and C content (Mn+Si)/C are met with weight ratio meter
2..46 ＜ (Mn+Si)/C ＜ 3.36.
Preferably, the percetage by weight of its each component is as follows：C：3.4-3.6%, Mn：5.8-6.2%, S ＜ 0.03%, P
＜ 0.05%, Si：3.8-4.4%, Cr：14.93-16.73%, Mo：0.013-0.017%, V：0.06-0.08%, W：
0.012-0.018%, Ti：0.03-0.05%, Bi：0.015-0.025%, rare earth：0.025-0.040%, Mg：0.045-
0.050%, remaining is Fe and inevitable impurity.
Preferably, the percetage by weight of its each component is as follows：C：3.5%, Mn：6.0%, S:0.01%, P:0.1%, Si：
4.1%, Cr：15.83%, Mo：0.015%, V：0.07%, W：0.015%, Ti：0.04%, Bi：0.02%, rare earth：
0.0325%, Mg：0.0475%, remaining is Fe and inevitable impurity.
A kind of preparation method of the wear-resistant ball of middle manganese high hardness high toughness of the invention, comprises the following steps：
S1, by iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and magnesium
Block carries out melting, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy is by weight
Percentage includes following component：C：3.3-3.7%, Mn：5.5-6.5%, S ＜ 0.04%, P ＜ 0.1%, Si：3.6-4.6%,
Cr：14.83-16.83%, Mo：0.012-0.018%, V：0.05-0.09%, W：0.01-0.02%, Ti：0.02-0.06%,
Bi：0.01-0.03%, rare earth：0.02-0.045%, Mg：0.04-0.055%, remaining is Fe and inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, is then cooled to casting
800-900 DEG C, 1-3h is incubated, room temperature is then cooled to the cooling velocity of 20-30 DEG C/min and obtains middle manganese high hardness high toughness
Wear-resistant ball.
Preferably, in S1, the temperature of melting is 1400-1420 DEG C.
Preferably, in S1, the temperature of spheroidising is 1450-1550 DEG C.
The present invention carries out reasonable selection by the component of the wear-resistant ball of centering manganese high hardness high toughness, and controls two kinds of P, S
The content of impurity, while when chrome content reaches certain proportion in steel ball, chromium is acted on the oxygen in corrosive medium, in steel ball surface
One layer of very thin oxide-film (self-passivation film) is formed, the matrix of steel ball can be prevented further to corrode, improve the wear-resisting of wear-resistant ball
Performance and decay resistance, extend service life；The proportioning of control silicon and manganese, manganese is the alloying element for expanding Y phase regions, it
The quenching degree of steel can be made to be increased, and makes the reduction of Ms points, promotes Austenite Grain Growth, and silicon is the alloying element for closing Y phase regions, it
The quenching degree of steel can be made to slightly have raising, the yield strength of steel is increased.Two kinds of alloying elements of silicon and manganese are added in steel simultaneously,
Respective advantage can be played, weakens the shortcoming of the two.By adding manganese, silicon and chromium, by controlling manganese, silicon and chromium
Total content must be matched with carbon content so that the total content of manganese, silicon and evanohm is maintained at certain on the basis of carbon content is obtained
In the range of, wear-resistant ball of the present invention excellent hardness and toughness are imparted, contained with carbon by controlling total content of manganese and element silicon
The proportioning of amount so that total content of silicon and manganese keeps within the specific limits, assigning the present invention wear-resisting on the basis of carbon content is obtained
Ball excellent hardness and toughness.Middle manganese wear-resistant ball hardness of the invention is high, good toughness, long service life.
Specific embodiment
The present invention is described in detail with reference to specific embodiment, it should be appreciated that embodiment is served only for illustrating this hair
Bright, rather than for limiting the invention, any modification made on the basis of the present invention, equivalent etc. are in this hair
In bright protection domain.
Embodiment 1
A kind of wear-resistant ball of middle manganese high hardness high toughness proposed by the present invention, the percetage by weight of its each component is as follows：C：
3.5%, Mn：6.0%, S:0.01%, P:0.1%, Si：4.1%, Cr：15.83%, Mo：0.015%, V：0.07%, W：
0.015%, Ti：0.04%, Bi：0.02%, rare earth：0.0325%, Mg：0.0475%, remaining is Fe miscellaneous with inevitable
Matter.
Embodiment 2
A kind of preparation method of the wear-resistant ball of middle manganese high hardness high toughness of the invention, comprises the following steps：
S1, by iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and magnesium
Block carries out melting, and the temperature of melting is 1400 DEG C, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising, wherein at nodularization
The temperature of reason is 1550 DEG C；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy is by weight
Percentage includes following component：C：3.3%, Mn：6.5%, S：0.03%, P:0.05%, Si：3.6%, Cr：16.83%, Mo：
0.0128%, V：0.09%, W：0.01%, Ti：0.06%, Bi：0.01%, rare earth：0.045%, Mg：0.04%, remaining is
Fe and inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, is then cooled to casting
800 DEG C, 3h is incubated, the wear-resistant ball that room temperature obtains middle manganese high hardness high toughness is then cooled to the cooling velocity of 20 DEG C/min.
Embodiment 3
A kind of preparation method of the wear-resistant ball of middle manganese high hardness high toughness of the invention, comprises the following steps：
S1, by iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and magnesium
Block carries out melting, and the temperature of melting is 1420 DEG C, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising, wherein at nodularization
The temperature of reason is 1450 DEG C；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy is by weight
Percentage includes following component：C：3.7%, Mn：5.5%, S：0.03%, P:0.05%, Si：4.6%, Cr：14.83%, Mo：
0.018%, V：0.05%, W：0.02%, Ti：0.02%, Bi：0.03%, rare earth：0.02%, Mg：0.055%, remaining is Fe
With inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, is then cooled to casting
800 DEG C, 3h is incubated, the wear-resistant ball that room temperature obtains middle manganese high hardness high toughness is then cooled to the cooling velocity of 20 DEG C/min.
Embodiment 4
A kind of preparation method of the wear-resistant ball of middle manganese high hardness high toughness of the invention, comprises the following steps：
S1, by iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and magnesium
Block carries out melting, and the temperature of melting is 1405 DEG C, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising, wherein at nodularization
The temperature of reason is 1520 DEG C；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy is by weight
Percentage includes following component：C：3.4%, Mn：6.2%, S：0.02%, P:0.04%, Si：3.8%, Cr：16.73%, Mo：
0.013%, V：0.08%, W：0.012%, Ti：0.05%, Bi：0.015%, rare earth：0.040%, Mg：0.045%, remaining
It is Fe and inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, is then cooled to casting
820 DEG C, 2.5h is incubated, the wear-resistant ball that room temperature obtains middle manganese high hardness high toughness is then cooled to the cooling velocity of 22 DEG C/min.
Embodiment 5
A kind of preparation method of the wear-resistant ball of middle manganese high hardness high toughness of the invention, comprises the following steps：
S1, by iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and magnesium
Block carries out melting, and the temperature of melting is 1415 DEG C, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising, wherein at nodularization
The temperature of reason is 1480 DEG C；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy is by weight
Percentage includes following component：C：3.6%, Mn：5.8%, S：0.01%, P:0.04%, Si：4.4%, Cr：14.93%, Mo：
0.017%, V：0.06%, W：0.018%, Ti：0.03%, Bi：0.025%, rare earth：0.025%, Mg：0.050%, remaining
It is Fe and inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, is then cooled to casting
880 DEG C, 1.5h is incubated, the wear-resistant ball that room temperature obtains middle manganese high hardness high toughness is then cooled to the cooling velocity of 28 DEG C/min.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of wear-resistant ball of middle manganese high hardness high toughness, it is characterised in that the percetage by weight of its each component is as follows：C：3.3-
3.7%, Mn：5.5-6.5%, S ＜ 0.04%, P ＜ 0.1%, S i：3.6-4.6%, Cr：14.83-16.83%, Mo：
0.012-0.018%, V：0.05-0.09%, W：0.01-0.02%, T i：0.02-0.06%, Bi：0.01-0.03% is dilute
Soil：0.02-0.045%, Mg：0.04-0.055%, remaining is Fe and inevitable impurity.
2. the wear-resistant ball of middle manganese high hardness high toughness according to claim 1, it is characterised in that S i contents and Mn contents
The ratio between S i/Mn with weight ratio meter, meet 0.55 ＜ S i/Mn ＜ 0.84.
3. the wear-resistant ball of middle manganese high hardness high toughness according to claim 1 and 2, it is characterised in that Mn, S i's and Cr
The ratio between the content of total content (Mn+S i+Cr) and C (Mn+S i+Cr)/C meets 6.47 ＜ (Mn+S i+ with weight ratio meter
Cr)/C ＜ 8.46.
4. the wear-resistant ball of the middle manganese high hardness high toughness according to claim any one of 1-3, it is characterised in that Mn and S i
The ratio between total content (Mn+S i) and C content (Mn+S i)/C with weight ratio meter, meet 2..46 ＜ (Mn+S i)/C ＜
3.36。
5. the wear-resistant ball of the middle manganese high hardness high toughness according to claim any one of 1-4, it is characterised in that its each component
Percetage by weight it is as follows：C：3.4-3.6%, Mn：5.8-6.2%, S ＜ 0.03%, P ＜ 0.05%, S i：3.8-4.4%,
Cr：14.93-16.73%, Mo：0.013-0.017%, V：0.06-0.08%, W：0.012-0.018%, Ti：0.03-
0.05%, Bi：0.015-0.025%, rare earth：0.025-0.040%, Mg：0.045-0.050%, remaining is Fe and can not keep away
The impurity exempted from.
6. the wear-resistant ball of the middle manganese high hardness high toughness according to claim any one of 1-5, it is characterised in that its each component
Percetage by weight it is as follows：C：3.5%, Mn：6.0%, S:0.01%, P:0.1%, S i：4.1%, Cr：15.83%, Mo：
0.015%, V：0.07%, W：0.015%, T i：0.04%, B i：0.02%, rare earth：0.0325%, Mg：0.0475%, its
It is remaining for Fe and inevitable impurity.
7. the preparation method of the wear-resistant ball of a kind of middle manganese high hardness high toughness according to claim any one of 1-6, it is special
Levy and be, comprise the following steps：
S1, iron block, carbon dust, manganese block, sulphur powder, phosphorus powder, silica flour, chromium ingot, molybdenum ingot, vanadium ingot, tungsten block, titanium valve, bismuth ingot and MAG block are entered
Row melting, obtains aluminium alloy, and being subsequently adding rare earth carries out spheroidising；
S2, refining desulfuration, deoxidation are carried out to the aluminium alloy in S1 by spheroidising, detected, aluminium alloy percentage by weight
Than including following component：C：3.3-3.7%, Mn：5.5-6.5%, S ＜ 0.04%, P ＜ 0.1%, S i：3.6-4.6%, Cr：
14.83-16.83%, Mo：0.012-0.018%, V：0.05-0.09%, W：0.01-0.02%, Ti：0.02-0.06%, Bi：
0.01-0.03%, rare earth：0.02-0.045%, Mg：0.04-0.055%, remaining is Fe and inevitable impurity；
S3, aluminium alloy will be obtained in S2 and poured into a mould, cast shaping, cleaning obtains casting, and casting then is cooled into 800-
900 DEG C, 1-3h is incubated, room temperature is then cooled to the cooling velocity of 20-30 DEG C/min and obtains the wear-resisting of middle manganese high hardness high toughness
Ball.
8. the preparation method of the wear-resistant ball of middle manganese high hardness high toughness according to claim 7, it is characterised in that in S1,
The temperature of melting is 1400-1420 DEG C.
9. the preparation method of the wear-resistant ball of the middle manganese high hardness high toughness according to claim 7 or 8, it is characterised in that S1
In, the temperature of spheroidising is 1450-1550 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226312.XA CN106811675A (en) | 2016-12-27 | 2016-12-27 | A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226312.XA CN106811675A (en) | 2016-12-27 | 2016-12-27 | A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106811675A true CN106811675A (en) | 2017-06-09 |
Family
ID=59110126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226312.XA Withdrawn CN106811675A (en) | 2016-12-27 | 2016-12-27 | A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106811675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739972A (en) * | 2017-10-23 | 2018-02-27 | 宁国市正兴耐磨材料有限公司 | The preparation method of manganese high-toughness wear-resistant ball in a kind of high chromium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2318910C1 (en) * | 2006-10-27 | 2008-03-10 | Юлия Алексеевна Щепочкина | Cast iron |
| CN101265547A (en) * | 2008-04-25 | 2008-09-17 | 北京工业大学 | High-chromium-manganese cast iron roller and preparation method thereof |
| CN104178702A (en) * | 2014-08-08 | 2014-12-03 | 无棣向上机械设计服务有限公司 | High-toughness wear-resistant alloy material and preparation method thereof |
| KR20150028904A (en) * | 2013-09-06 | 2015-03-17 | 현대자동차주식회사 | Heat resistant cast iron having excellent wear resistance at high temperature |
-
2016
- 2016-12-27 CN CN201611226312.XA patent/CN106811675A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2318910C1 (en) * | 2006-10-27 | 2008-03-10 | Юлия Алексеевна Щепочкина | Cast iron |
| CN101265547A (en) * | 2008-04-25 | 2008-09-17 | 北京工业大学 | High-chromium-manganese cast iron roller and preparation method thereof |
| KR20150028904A (en) * | 2013-09-06 | 2015-03-17 | 현대자동차주식회사 | Heat resistant cast iron having excellent wear resistance at high temperature |
| CN104178702A (en) * | 2014-08-08 | 2014-12-03 | 无棣向上机械设计服务有限公司 | High-toughness wear-resistant alloy material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739972A (en) * | 2017-10-23 | 2018-02-27 | 宁国市正兴耐磨材料有限公司 | The preparation method of manganese high-toughness wear-resistant ball in a kind of high chromium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102134682B (en) | Wear resistant steel plate | |
| CN102251183B (en) | Boron-containing high-chromium wear-resistant alloy and preparation method thereof | |
| CA2615682C (en) | Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel | |
| CN103173682B (en) | Hot rolled strip for conveying concrete and manufacturing method thereof | |
| CN105568134A (en) | Steel for carbon hub bearing of microalloying car and production method thereof | |
| CN109835014B (en) | High-strength high-toughness wear-resistant composite steel plate and manufacturing method thereof | |
| CN106756511A (en) | A kind of bimetal saw blade backing D6A broad hot strips and its production method | |
| CN104451405A (en) | Austenite wear-resistant steel with impact and wear resistance and hot rolled plate manufacturing method | |
| CN109338214B (en) | High-strength high-toughness steel for rock drilling tool and production method thereof | |
| CN100392141C (en) | Improved composite high-chromium iron-cast roller | |
| CN103397272A (en) | Abrasion-resistant steel plate with low crack sensitive index and high strength and preparation method thereof | |
| CN103060662A (en) | Preparation process of alloy cast iron grinding ball | |
| CN104388811B (en) | Multi-element alloy cast iron grinding ball and preparation method thereof | |
| CN104109798A (en) | High-Cr abrasion-resistant cast iron steel ball | |
| CN103805866A (en) | Wearable steel ball preparation process | |
| CN104593663B (en) | A kind of wear-resistant white cast iron and preparation method thereof | |
| CN106868412A (en) | A kind of low shock proof wear-resistant ball of tungsten high rigidity of high-carbon low-chromium and preparation method thereof | |
| CN106609334B (en) | A kind of superelevation chrome cast iron and preparation method thereof | |
| CN106811675A (en) | A kind of wear-resistant ball of middle manganese high hardness high toughness and preparation method thereof | |
| AU2002257862B2 (en) | Reinforced durable tool steel, method for the production thereof, method for producing parts made of said steel, and parts thus obtained | |
| CN110578101A (en) | Marine tempered sorbite high-strength and high-toughness stainless structural steel and preparation method thereof | |
| CN106834972A (en) | A kind of wear-resistant ball of middle manganese hard high-wearing feature energy and preparation method thereof | |
| CN101748335B (en) | Nickel-free grate material for sintering machine and manufacturing method thereof | |
| CN103060663A (en) | Alloy cast iron grinding ball | |
| CN106319393A (en) | High-wear-resisting and high-toughness austenite ball grinding mill liner plate and preparing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170609 |
|
| WW01 | Invention patent application withdrawn after publication |